Fire-protective system.



', PATENTED MAR. 10, 1908.

FIRE PROTECTIVE SYSTEM APPLIOATIU FILED JULY 8, 1907.

s SHEETS-SHEET 1,

- n1. PATBNTED MAR. 101908. No 881 1. H. WALKER. ma PRoTEoTIvB SYSTEM. APPLICATION' FILED JULY 8, 1907. I

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W Y @arm/v Y THOMAS H. WALKER, OF KANSAS CITY., MISSOURI.

RIRE-PROTECTIVE' sitsrnir.

Specification of Lettere ixiterit.V i

Patented 1i),

Appismm mainly s, 19o?. 'lserisi' No; 382,131;

Toall whom it may concern:

Be it known that I, THOMAS H. WALKER, acitiZen of the United States, residing in Kansas City, in the county of Jackson and Steteof' Missouri, have invented certain new anduseful Improvements in FirePrctec' .iv Systems, of which the following' is n spec.4 tion.

Myinvention relates to improveinents in 1o {ire- .rotectwe systems.

T object of my invention 'v is'to provided the flott-cd linee-Q o mechanism for automatically extinguishing firesand which will be prompt end cfective in opera-tion endv not liable to get out of order. v My invention relates.to'iireprotective sys tems 'in which a wnt'er'mein is-provided with a number 'of spraying devices', normally held iriopersftiye' by heet controlled Ineens.

ifm.'- sprinklers are stt-ached. 'device 1s breiten nbay My invention provides e vWater 11min hav- 20 ing a. passage connectingtwo chambers, .one

ofwhich normally centelns water under pressure, the other normally conteinin a duid,

lsuch as air, sind provided with. f ischarge Aopenings in which. are monted the heat. conltr'olled" spraying devices, said nessege being closed at' its ends by'two valves, "piston being employed in the water containing `chanllierf .actuating one of the valves, the

vmovement of'the piston heingeontrolied by mechanism actuated by the verietionopres n s-sure in the air containing; cheminer.4 The novel tentures of my inventionar hereinefterfully described and claimed.'

'35 trateim inventiiin-f `igixie 1f is a verticixl sections View oi e portion of the water mitin showing the two chambers, the intermediate connecting passage and sonic of the arts 'iconne'cted therewith. "40.jti0n View of a. port-ionoi' the wai-ter main, showing two spraying devices attached there 5to. F ig. 8-1 's nn elvvittion View of what is shown in Fig. 1, the view being teken :it righ-t 'nnglesto the View shown in Fig. 1. Fignisa 45 l/top detail View of one of the electrical Circuit controlli ng devices. Fign isn diagrammatic ,View of :L portion'of'thc circuit which the device shown in Fig. 4 is located. Fig, (5 is-n top View and Fig. 7 ai side-elevation of so the" mechanism' employed to support the lever which is employed to' open the bl parse valve. 'Fifi'. S is n vertii'fa-Ll soctionat. vi'oiw teken on the dotted line f'L-fb ol" Fig. l Ei'g.

i) is nfvortivnl.sectional View. dotted line c-. -r l ot' Fig. 1. Fig; `lll-is it vertical sectional View of u modilied jiormgofmy Fig. .2 is aside e eve tanken on :the

4, in' which In the eecoinpenyin r dren-rings which llltfse 11 ise sideeeyetionyievi device, fo my invention, edepted to beemp. eyed "witiiry system which uses nir-:1t either grexiter'or less than atmospheric pressure -tor automti-emily turning thew'eter'into the pipe to which the in this viewfih' '-1 tion of the sprinkler and the mein is shown in' verticeleectin Fig. l?. is o. vertical sectional View' teiten on fFig. 1t. Sirriilsr characters oi reference 'deiiotesirniler parte. Referring tothe drawings, 'the comprises the prineipel chamber forcontaining e'fiuid, suoli as nir, 2-v the'clinrlnber w hich centaine theweter under/1' pressure, end' 3 an intermediate ehember or passage, theends of which connect respecL tiT ly witi'l' the chiem'bers 1. end 22. in the form ofmy'invention 'illustrated in and 3, and' which lis the Metern-ble 'ferm of my inven.tiori,`the chamber such as air', 'whiehlis normally et' s. nressm' less than atmospheric. In the :modihed form 'of' my invention, shown in. Fi f. ber l-contziins 'e liuid suoli iis nir, which ist normally under pressure greeter their e'tn'ies pheric pressure. in both forms of my invention thev einem# ber 2 is provided with a. preferably, down# werdl'y inclined eylindriosl ortio'n or is reeiproczttiv'e y mounte a. pisur ton 5, the osition ei whiehin the pocket .41s determine by the relative 'fxessn'e et opino# site ends et the piston. irte 'upper end ei the piston 5 is Provided with recess 6, in wnelris fitted-emailen which enciroles' e valve stein 8, provided von the witter meint per?, denoting the fili i eontsins e. finiti',

ocket a. screw threaded lower side of 'e valve 9 Wiiiclinormally closes the lower end 'of the passage 3! To 'the lower end of the pis-ton 5 is pivoted the upper end of'a link 10, 'the lower end of which is pivot elly connected to a'erenk 11 secnredcntlie inner end of e transverse rock shaft 1,2, which ten e through en .opening provide. in the ide well of the pocket mounted 'a' k'in'gring 13 thnt cncircles the the .outerend of the shaft 12 is shown' in Fig. 3, which by secured Aelever 14, swinging in the 'proper direction will rock the shaft 12 se es to fore-e the piston `5 D upward to the position 'shown in Figs.l lend 1U, in which position. the 'valve 9 ivillwelstagainst on annuler seat encirclifg the open.-l ing 15, provided at the 4, in, 'which is and v ve lower-end of 'the pas when the valve 9 is withdrawal sage 3. intermediate `the upper and lower ends of the passage 3 is an outlet 16adapted to be closed by a valve 17, pivotally spported upon the inner side of the passage 1. 1n ,the form' of 1n y invention shown in Fig. 1, the valve 17 is provided with an inwardly extending arm 18l adapted to be engaged by the periphery of a valve '19 and forced to 4the position sl'iown in Fig. l, in 'which the valve 17 'is swung away from the outlet 161to permit' the escape of water, which may be 1n the passage 3. ln the form shown in Fig. 10 a curved arm 18 is provided on the valve 17 said curved arm being engaged, when the valve 9 is seated, by an annular flange-20., projecting upwardly from the valve 9 into the vpassage 3, and holding the valve 17 open seated but'perniitting the said valve to close when the piston ,5,moves downward and 'draws'wjith it vthe valve 9.

ln the form `of .my invention illustrated in Fig. 1, the valve '195s illthe form .ofan in# vertedcup having a lateral annular ilane 21 P0' adapted, Whenthe valveusin the close sition, to rest on an annular seat 22,'wh1ch encircles the opening 23 at the upper end of the passage 3. The valve 191s screw threads on its interior and has fitted therem an externally screw encircles a valye stern 25, the upper end of which is provided with a head to prevent the u of the ,stein25 fromthe ring 24,-', said hearesting preferably against the con- 4 yex side of a curved 'sprin plate `26, /the ends of which bear agairustt e valve/19. The

lio

lower end of thel valves Q and will fsWunU seas to force t the stern 25 is sere threaded and fitted vided centrally inthe upper end of the ,stem The stern, 8 is also .provided with a head which is engaged b" the lower end of the ring 7, which prevents vthe stern 8 from being Withdrawn.

The stems 8 and 25- are preferably loosely'mounted in. the rings 7 and-l24 so that readily= seat themselves. Y. y f

Inassembling the {aart-s .the lever 114 .is iirst je valve 9 to itsjfseat, as

already described, after which' the stern l25 y `which is provided Witha squaredffportion within the passage 3- and vbelcnvtlie ring 24,'

is gripped androtatedin a'direction-such. that the stem 2 5' Wlll be moved len .thwise upvvardlyuntil it has forced theva .e719

against the seat 22.

In "both forms ofiny `invention the pocket 4 is connected to a by pass at hothends of the piston 5' so that the` Water n1 ay p assin the poc Aet from the upper sideof the piston 5 to rassure against the lower end of Vsaid piston.

The by 'pass disclrarges-outside the chamber Zand is controlled by a valve which, vwheno cned,pe11nits the Water to escape from threaded ring 24 `which A a screw threadedgopeningpro-v lower side thereof so as to have Water',

lowing described parts ..-A Water conductor 27 has one end connected to the pocket 4, at a point which is below' the iiston 5 when the .piston is raised, but Whic as is shown in rig. l, is closed by the piston 5 when the 70 piston is in its lovvermost ostion, said position being indicated by 'c otted lines in the said figure. The conductor 27 discharges at its upper end into the casing 28 of an ordinal?v hydraulic alarm having a gong 29, Whic i casing is connected by a discharge pipe 30 which empties. into a Waste pipe-31. The alarm device 'ust referred to 1s of the ordinary type an its specific construction is not a part of my invention, and' therefore needs no description. l i

Connected with the conductor27 is another conductor 32 which discharges into the passage 3. The conductor 32 is provided With a check valve 33 of the ordinary type, which permits the water to run into passage 3, but will not permit back flow from' said passage through eonductor32. A conductor 34 con nects with the pocket 4 at a oint above the upper end of movement of the uiston' and also With a valve 35 insertedin t e conductor. 27 1, and by means of Which-valve lthe -loW from the pocket through conductor 34' niay f be regulated. In conductor 27 intermediate the valve 35 and the-point of connection with conductor 32 is an ordinary 'hut'o'illvalve 36 having a4v horizontal stem 3' ysecured at its vvouter end tothe center of a verticall ,dis-

posed disk 38. The disk'38 isv provide with a lateral 'peripheral projection 39 bywhich the valve stem 37 may be rotated to close the valve.

The valve stein 37 may be rotated automatically to the o en position by the following described inec anisin.

A lever 40 is provided at its lower end with a`disk like enlargement 41 pivoted eccentrically -by means of a'screW'or pin 42 to the. disk i 38.' The enlarged end ot' lever 40 isprovided v with a slot 43 disposed.concentrically with the pin or screw 42, and has projectingv through it a pin or screw 44 by whichthe valve stein 37 is turned to the open position when the lever 40 falls, as descrlbed hereinafter. y On the lever 40 isv a Weight 45providedv with an eye 46v i-n which is secured the. lower end of a' hook 47 the u 'per end of p 4ivvhich is bifuroalted and provide with a hor'izontal portieri .48 connecting' the upperends of the arlrs of the hook 47; A- vertical cir.- cular plate49 is secured at its'lower ed e to a horizontal conductor 50, one end. of W ch is l secured in a hole provided in the. side 'of the chamber 1, the other endliavin secured/in it` one open end ol a partly circu ar expansilvlc tube 51', the other end of which is clc'ised` jand has-connected to it one 4end oa liiik'jZ' pivotal-ly connected to alever-B, pivoted to the plate 49 and having ted to it one.- end r of a horiaontal rod movement of the piston 5, as already de scribed, the'valve liiwill be Withdrawn from its seat 22, and in its downward movement will permit the valve 17 to close by gravity.

The passage 3 will. now he in communication with both chanibers 1 and 2 so that the Water can pass from chamber 2 through passage 3 info chamber 1 lroin which it can escape by the discharge o cnings, es hereinafter described. rlhe va ve 17 beingr closed no Water can pass through the outlet 16 and the only Water Wasted will be the small amount required to oliierate the gong 2t).

nWhen the lever V4() falls it will strike andl swing downward a lever 66, shown in Figs. 2%y

and 4, which lever is pivotedto n plate 67 secured upon a block ol. insulation 68 which is supported by a plate 69 carried by the con-E ductor 32. The lever 6C Vin being swung4 downward by the liever 4() isrforeed between and against a spring U shaped ycontact plate 7U insulated fromthe plate 67 and supported by `the insulation block G8.' and 7 0 are connected respectively to conductors .71 and 72 which in turn are conliected one to one binding; post 73' ci an Valaruibell 711 of'the ordinary electro magnetic typo, aid one to one pole oi a battery 75, the other pole of which is connected by an electric conductor 7 6 to the other binding); post Toligtlic, electric bell 74. The circuit thus being coms plcted, the bell 74 will ringruntilv the lever no' issvvung back to the position shown. in Figi. 1, in which position the lever 65 and contact late 7U are separated and the circuit is roken. The electric alarm nieclninisln just described and sl'iown in Fig. 1 may also be employed in connection with the forni shown in Fig. 10.

As shown in Fig. ll), the ov'icninir il?) :it the end 'of passage 3 is normally closed by a. valve 11) hinged in (-.liainl'ier- 1 and normally restin,y by gravity upon a scat encircling` said o ening 23. ln this forni ol' my invention, willen the piston 5 lowers :ind lowers the 4 valve Q, as already described, the valve 17 Will` fall and close the outlet 11". `The water Willy enter from chamber 2% into passage 23 and the pressure oi said water `will force thevalve 19 upward to the open position, thus per mitting the water to enter chamber 1;

W'hen it'is desired to sluit oil' the water from chamber l and' replace the parts again in theoperativeposition shown in Figs. 1 and 10",- the lever 4() is swung; to the position shown inlsaid figures, and the hook 47 engaged with the lugs 60, and so held until the rin 63 entersbetwecn thc lugs 'Gil and e1n braces the transverse portieri t1.8 of the hoekA 47. This will occur inthe form shown in Fig. 1 when Athe partial vacuuinwforined in chamber l `is of sufficiently low pressure. -It will occur in the forni shown inFig. 10 when suiicicnty air has been pumped into chamber 1 to preste the `)required pressure.

sition.

The p` atcs 67y After the hooi: has been so positioned, the valve 36 1s closed by turning; the dish Ei@ by --ineens oi the lug 39 to a position in which the valve will be closed, or to the position shown in Figs. 1 and 10.

The valve 36 being closed :no Water can ber diseherged from the pocket i through the by pass pest the valve The water entering; conductor 27 through 'conductor 311 )ast valve 35 will `pess by conductor 2.7 into pocket 4- beloW the piston, thereby increas ingthc pressure `below the piston so'thet it may be readily raised to the position shown in. Figs. 1 and 10' by swinging the lever iii in thc proper direction already described. rihe valve Si being closed no water will eiiter the passage 3, and such Writer as may' remain in said passage will be discl'iarged ,through outlet 16 as the valve 17 is raised by valve Q whenvsaid valve 9 is moved to the closed pc- At the saine time valve 19 in forni shown in- Fig. 1 will be closed. In the form shown in Fig. 1() the valve 19 is provided with a projection, preferably a. spring; or re silient projection 7 8 which prevents this yvelve from remaining open after velve i) .hes been closed. Valve 1.9 will thus close by gravity'. ln each forni of niy invention the chernberV .1 is provided With a draw oil' cock '79 disposed at thelower end oi' said cheniher, soA thet when the valves 1 9' and 19' cre closed the water remaining in chai'nber 1 may be drawn oll`. Such draw oii cocli; may also be enr ploycd to fasten e pump thereto for the pui# pose, in the form shown iniiig. 1, olZ puinpin out a part of the air to produce. a partiel vacuum, or in the lorin shown in. Fig. 1li, for the purpose of pumping-air into chaniiber 1.

rllhe mechanism for operating orreleesinp; lever 4U, shownin Fig. i, may be mijns-ted to release seid lever at diiiercnt degrees of pres-- sure in chamber 1, by loosening the screw di and then swinging; the plate 56 to the right or lei't, to the right for a higher pressure and to the left for a lower operative pressure. The screw 64 is then secured against the rod 54e.

In Fig. 1 i have illustreted an alarm oieJ vice for notifying the operetta when the pressure in eliianiber 1 is getting too high, by reason ci' leakage into the ei'iemher of: air iiroin the atmosphere. This mechanism is shown in 1.` to the left of chamber 1 end 'opposite the mechanism for controlling lever 440. For this mechanism another conductor Sir-is attached et one end to, chercher 1 and at the other end to another exoensible tube r51', closed et its opposite end, tv e closed end a hole in e pin or screw 55' viivoteifl to piratev 56 which is pivot'e'cl to stu' 57 of e luigi,F 58

Von plate 49'. .Plate 56 hss en arm/63' ivlhich feeien 3 oeivoro helov'he www se portion 3.05 (nf-the U- 5w y eeeh o recess all Dell ed; e lov-fel" preseue in the ehem'oe'f i A to eleese .hook i? l'looi the he heli einge, the opereei? out o l' f ehomher l. so es 'to deeiiefl iL-o he maior sented in Figs. ll comme" 'iern with provided im., me

u .Klei de Seid ..1 n -U mvufiljv extend.- of which is Seuel oohoo..vooonvex ek Q1@ the center o glie-@ une of the die.- hi-Lee Seid olieie .norme-elly eovei'ed with f opening' closure valve which 'a enoiieliig the ev'iilg upon `elle pvfovidefl with diepoeeil e. flieg upwardly ,o below the 4disk ting Wamel the a Qi il?. To "fe/*Leim the in 'the elozseei yoeirone '12, Lhe 'following der *iiployed in inverted y y lower ende of its arms pe. reepeoively on two pogeotions poseo dmmeieally oppose on 'ehe gallery of elle hase 92. Y .w1 v lv l"Q .Nlbl ikl M. re e.1ee 5 clopoom el cre.) eves 03 dispose-o. one ehove and one e 'wel be.,

ehepefl heil, mi levezfshev-iig it'eo 'lo ,3mal treoevese portion 16.5 The ifoneieeoe oi the levers and i011 are b1- m'oeefl. the biliaire/ated @tiene embraoi word miei ee fitted in die-metioel grooves in pei side o' the valve 96, said gfooves 'oemg eed emls of leve he la eil and eeioeeted isY lUZ in the lower side of a.

encircling* the valve stem' lll/l. extend epwedly from metrieel grooves. Weshe 10S, said Q9 end oemw eshei eieliotel'l hy 196. The himmel-75 ing et its upper side egeinst e out 109 litted..8o

on *elle theecled upper end of the Stem 99.` '.lvJol 'vertical pletes 13.0 ee provided with aeoeveee openings through which respeo 'tively extend the entre? enclsof thev levers 103 and Wd... Sefl exeter ends of seid levers are foreecl toiveo otllei ALiet/il the biluroetedk kende of the levers *force 1he valves 96 and l00- {,ighlv egeiost allelic seats on the gasket 97, the il@ bem.; soldered together, as shown in Fig. 1'5"., 'with' the clewree of heel.; et which it ie desired to releeee .vos and. 100.

Maiori of @his spiokler meehen-ism i e lire occurs 1n pl'oxlmlty feo luke eee HQ, when the heet becomes. ouille; ot @he Solder holding said lates will lose, ehe will loe ireleesed, t. us relees- 'the levefs'lf emi we, which, with the heil oompieiig the minis 10i end horizontal poriio.: E05, will ial, the transverse portion 3.05 heilig disposedet one side of the exis ofy the s'neio 9h. 'The velve'etem 99 will thus be free te move downward, and the valve 96 will he flee to move upward. If thep'reseme system, shown in. Fig. 10, is the o rie emloved, the eil? pressure in chamber '.1 will low oil' the v'elve 96 together with the valve 10G end LJapin QQ, thereby permitting them/ir in seid chemhe to' esee 3e until the pressure beeomes euiloiemlymeouoed to actuele the mechanism oon-tyiolli'ng elle opening of )the valve Wheo this mechanism is actuated, es already deseirihefl, the Weber will pass from ehe-moer l., through peesege 3, into chamhe 'l eno. from chamber 1 will he dischargedbh'fough disolver-'Te opening 95 against the. deeeiog d vloek. vv illfsjoruy the Water in oli directie? l lf the sys employed be the partial vec-u shown in Fig. l, when the heil and levers 103 and. 104 fell, gravity and exemel eo: preesue will ioree the valve 10D 1 and. ie einem .0.29 dowmva-id through the hole 93, sind ei'f will enter the chamber l through the dieeharge opening 95 and hole 98 of valve 9 6 until sulflioieot pressure has accumulated in ohemhec l to eetuete the mechanism oontrolling the opening of valves 9 and 19. `When seid velves open the Water from oliemhe;1 2 will pass into chamber 1 and will be dis.-

some solder fusible at ,90

d se 1,271.

charged therefrom through the discharge cheminer for controlling the flow of water o erung 95 end against the delecting disk 94, through seid hy pees. tile wetter end air pressure removing` the 4. ln o, fire protective system, the loornhiu y valves 96 sind 100. Valve stem 99 is preiein nation with e "wetter mein, herring two ehemably 'provided with e transverse hole 1,11 to bers and a pesssge coruiectirtel tl'iern, one 70 receive a neil `or rod so thet the stem may he chamber i'iorin'tlly containing cir, the other held from rotation, when it is desired to turn chen'lher normely containing witter onder the'nut 10Q so as to increase the pressure of pressure, of e piston o'xounted in the letter the levers 103 und H34 against portion 10.5, ohember seid chemhcr being; closed et one and against valve 9o and washer '108. As end of tl'epistou., e hy poss co .o ting with `75 shown in Fig. 2 chamber l, et its upper end,l seid passage end with the w'eter chr-,initier :it is provided `:with 4e oep 112 for closiugthe end' opposite ends ol seid piston, e relire contriiit of the water mein', Chzunher 2 is connected ling the low of water through the hy pese to it," .et its lowerA `nd w ith e water supply pipe not seid passage, ineens actuated hy radiation oi" f m15 shown. i pressure in the oir chamber for controlling Hoving-thus described my invention what the opening of seid telve, two 'wolves resueee l claim and desire to secure hy Letters Pettively controlling comuuoiiczdion between nt, iszfr; t y seid two chambers and seid posssjc, one of v Q1, lfnfdlire "protective system, the comhiseid two veives heilig ovtuotod hy seid pire v :zoy nation .with s; we ,el [nainherring,r two chem ton, seid passage herring ou outlet, ,ond n, S5

bersfimd essege connecting seid chemvalve controlline,r seid outlet und movzdile to hers, orte. .,he-mhdr' hering e cylinder closed the open-position hy one ot seid two wolves. atA one end 'andeon'uniinieeting et the other 5. in e fire protective system, the combiend with seid Chamber, of e Valve normally notion with e water mein he' dog o, rflmnihor z5 disconnecting seid passage from one of sold nornmlly containing 'witter oit-lor pressure 5m chambers, e piston movable lengthwise in end provided with zmiochet, on. ein? mitteilt seid cylinder, means connected with the pising ch'fuubor and :t posseggo commuting seid ton {erect-mating seid valve, e by pass contwo chambers, smh posseggo herring im out-- nested with said possoge and with the cylinlet inter-mediado its ends",l ot :twelve for cios 3o der chen'iher et opposite ends of seid piston, ing said nxtlet, two vulves for rosy-actively 95 and means ectueted hy variation of' pressure closing the ends of seid posseggo, t piston rein the other chamber for controlling the'fiow ciprocetive in seid pocket und Controlling the of witter through seid by poss. movement of one ol' seid two wolves, :i hy 2. ln o lire protective systenl, the combiM pass connected with seid posseggo und with V3 y nation with t witter mein lowiz'ig two chem seid pocket et opposite ends ol? eeidpiston, e m bers and n p11-sesgo Conner-,ting said charm` volvo in seid by poss for controlling the flow hers, one ehzmjlher containing e partial vnvd ol water therethrough into seid nes ige, end um, the other chandler lowing :t eylilidrical moons aw'mtted hy zt Variation in pressure in ortion closed :it one end und romnulnicetthe oir containing; rheniher or controlling 401mg ot the otllol" end with the said olnmdwr, the oponirg o! of e, volvo lor disdoru'xeeting seid passage d. ln o, lire decrire system, the combi from om` of seid ehohifhors, n piston. mounted notion with o wzuor umili lowing two ehem-- in seid cylindrical portiorh, moans connor-tod hors und o, passeer connecting; them, seid with thepiston for oct( iting soidl 'n.lvo, n, hy passage honing on outlet intermediate its pass eoru'loctod with id passage und with mide, ol e volvo rourolliog seid outlet, tiro n@ seid"cylindrical portiontlt opposite ends ol vulves tor retainer-tively closing the ends of seid piston, :und moons :dgtontod hy idol-onse seid mssoge, e piston recipi cet-ire in. one of pressure in the portie-t voomlm rhhnhm" ehem or for controlling thel nioroineiit of one for cmitrollii'lg thollcm'of irnler thloogrltsoid oi said two vulves, sai-id 'piston controlling 5o by pees.

` also the nmvomwlt oi' sid outlet telve, sind M5 3,. "In :thro protective system, the eohrhtmoons ertunivd hy variation of prissure in n'etioi'i with o water in oinldwing twmclmmL the chonihor not i: mts-inintg the p stin'i 'For bers and o pessgigo connecting seid "rhzm controlling the movement of seid Piston. bers, one chamber normally," containing :t pfir- '7. lo o, 'lire protective system, tde eo'mhitiel vacuum and the other chamber hevii'ig nation with mwnter mein having; two @heim m0 normally Waiter therein under pressure, ol'- :t bers und o, pnsszige connecting them, seid. valve disconnecting seid pessegerom one o two clnnnhere containing; respectively witter seid chambers, e iston mounted in seid we# under rossore ond eir herring :i pressure ter containing `c lumber, ineens connected uornmhy lower their titolosplwrir messure,

6o With the piston for, ectuoting seid valve, :t hy the oir roomloins,s clo'unhc--r herring e dis-n 125 pass connected with seid passage and to the cherge opening. ol hout controlled menos for Water containing chamber et opposite etuis Missingl seid discharge coming, two vulves of seid piston, and moons reguletrthle to op for respee 'rely closing the ends ot seid. pas. ereteat different pressures endoctueted hy' esige, e 1a :too '1r-loomed in amid writer soothinincrease of pressure iii-'the partiel vacuum ingclumilrior mrd eootrohwg the ino-vement 130 1d hy poss volvo. m5

Y Water containing.

o r one of said two valves and controlled in its movement by the Water ressure in its chamber, and means actuate by increase of pressure in the air containing chamber for controlling the movement of said piston. 8. In a lire protective system, the combination with a water main having two chambers and a passage connecting them and res 'ectively normally' containing in sai-d two c embers water under pressure and air, the air containing chamber having a discharge opening, of heat controlled means for closing usaid discharge opening, two valves for respectively closingthe ends of said passage, `a piston mounted in said water containing v'chamber and controiling the movement of one of said twovalfves, the said chamber at yone-end oi the' piston being closed', a by pass connected to vthe 'Water containin chamber f l at opposite ends of'saidrvpiston an dis'charg ing outside of the water containing chamber, a valve V`i:n'tprrnall.y preventing the discharge fromf'thie. water containing chamber through saidby-passanti means actuated-byvaria-fion in pressure in the air containin' chamber. orcontrc'lling`- the opening of sai by pass i.k 1f" Il 't -v9.,fIn"afre protective fs stem, the combi-` nation with awater` main] Vavingtwo cham j, bers and la passage A coi/me ctir'ig them, one ,A ,chamber containingfair af d'the other water f .under pressure, the airlcontaining chamber .having a `discharge opening, onheat con trolled means iorclosing said discharge opening, two valves for` respectively closing the ends of said passage, a piston mounted in' the chamberV gand controlling ythe; movement o: one of said two valves, the vi VWater containing chamber being closed at one 4o end ofsaid piston,a-by ass connected to the I water`containing cham .er at opposite ends of saidv piston' ,and dischargingl outside thel 'saidwchambcr/,ff'ayvalve`controlling the diss `'charg''i/from saidbyfpasmlsaid assage having `an outlet intrinediategits'endls), a valv convtrollirggsaid'ontlet,'and means act ed by variati/onof pressure inthe air containing chamber for 'controlling the opening of said 110. Iii/af irefurotective system, the-"bomaf.I

binatjnnwith a criambero'r containingvatara ui'derr pressureand having an outlet, of a valvefor-fclosing said outlet, a piston recipi 'rocative in said chamber, the chamber being .closed at one endet said piston, said piston controlling the movement of said valve, a by pass' connectedtc said chamber atl opposite ends of said piston and dischargiri outside of seid chamber a valve for contro ing said discharge,`means actuated by air pressure valve,

moving said iston to force the valve in said .chamber to t e closed position,

11. In a ire protective system, the combination with a chamber forcontaming water under pressure and having an outlet, of a valve Jfor closing said loutlet,a piston reciprocative in saidchamber, the chamber being closed at one end of the piston, said pistonv controlling the movement of said valve a by pass connected to said chamber at opposite ends of 'said piston arid discharging outside said chamber, a valveA controlling the discharge of water from said by pass, and lmeans actuated by air pressure for controlling the opening of said by ass valve.

12. In afire rotective system, bination with a c amber for containing water ,under ressure and having an outlet, of a valve or closing said outlet, a piston controlling said valve and reciprocative in said chamber which is closed at one end of said piston, a by pass connected to said chamber at opposite ends of said piston and dischargfin'gfoutside i of said chamber,

by pass for preventing discharge therethrough fromsaid chamber, and an alarm device actuated when said by pass valve is inthe open position.

13. In a lire protective s stem, the com-lbi-nation with a water main aving a passagerovided with two seats and having a chamer for containing water under pressure con- `nectedwith said passage, of two valves for respectively enga ing saidseats at the ends of said passage, a instable connecting means by which Asaid valves may be adjusted to- Wardand from each other, and a piston recilp- -rocative' in said chamber and controlling movement of said valves.

14. In. a lire protective system, bination with a chamberhav'in an outlet piston valve andreciprocative in said chamber, which is closed-at one end of said piston, a by pass connected to said chamber'at opposite endsarififsid piston and .discharging outside i said chamber, a valve insaid bly pass vfor preveli tingl discharge 'therefrogng and manually Mp'rite ans fr movin i .,pis'ton so as to force the valve in sai chamber to 'the closed position. l

In 4testimony whereof I have signed my :name to this specifcationin presence of two `subscribing witnesses.

Afor controlling the movement ci said bypass f' WARREN@ met# and manually'- operated means for- -opening', of a valve for closing sai opening aor controlling the movement 'of said.

a valve in said TrioMrsHQwALnna 

